CN202745740U

CN202745740U - Hydraulic balance large-tonnage lift sub

Info

Publication number: CN202745740U
Application number: CN 201220273308
Authority: CN
Inventors: 马拴荣; 李豪
Original assignee: BAOJI JINHAO PETROLEUM DRILLING EQUIPMENT CO LTD
Current assignee: BAOJI JINHAO PETROLEUM DRILLING EQUIPMENT CO LTD
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2013-02-20
Anticipated expiration: 2022-06-11

Abstract

The utility model provides a hydraulic balance large-tonnage lift sub which adopts a center balance structure, wherein the spacing center between two lifting lugs is lengthened, and the upper plane of the lift sub can be automatically under the horizontality whatever the lift sub is forward lifted or perpendicularly lifted and transported, so that the work bore diameter of the lift sub can be always enabled to be perpendicular to a drill rod, and the phenomenon that the work bore diameters of the drill rod and the lift sub are eccentrically worn can be avoided; and the open and the close of the lift sub are hydraulically controlled accurately, so that the well drilling speed can be greatly accelerated. Furthermore, the open and the close of the lift sub can be wirelessly monitored, so that the potential safety hazard can be eliminated.

Description

Hydro-cushion large-tonnage elevator

Technical field

The utility model belongs to wellhead hydraulic lifting device technical field, is specifically related to a kind of hydro-cushion large-tonnage elevator.

Background technology

Existing elevator for the lifting well mouth drill, have following defective on the structure: one is that two hanger center to center distance are little, drives with the top that to lift angle between the two when cooperating large, is prone to and tiltedly is subjected to force phenomenon; The 2nd, it is large that elevator is opened rear forward leaning angle, can't utilize the suspension ring automatic buckling drilling rod that leans forward, need the balancing band artificial assistance just can make elevator fasten upper plane and keep balance, and easy eccentric wear drilling rod, reduce drilling life of drill pipe, be prone to the on-stream phenomenon that ruptures because of long-time eccentric wear drilling rod of drilling rod; The 3rd, elevator need to manually be opened when two layers on derrick, fasten elevator, and fastens the radio detection equipment that whether puts in place without detecting it on the elevator, has potential safety hazard.

The utility model content

The technical problem that the utility model solves: a kind of hydro-cushion large-tonnage elevator is provided, employing center balanced structure, and lengthened the center distance of two hangers, very or vertical handling elevator, the plane all can be in level automatically on the elevator, guarantees that elevator work aperture is all the time perpendicular to drilling rod no matter, can not produce the phenomenon in eccentric wear drilling rod and elevator work aperture, and hydraulic control is all adopted in opening with fastening of elevator, and is accurate, greatly improved bit speed.In addition, the folding of elevator has been eliminated potential safety hazard by wireless monitor.

The technical solution adopted in the utility model: a kind of hydro-cushion large-tonnage elevator, comprise left main body, right main body and dead bolt, all be fixed with semicircle slips on the circular arc inwall of described left main body and right main body, and the link of left main body and right main body is by the hinged formation opposite opened of main body joint pin structure, make two variable semicircle slips be combined to form circular elevator work aperture, the link outside of described left main body and right main body is provided with the folding oil cylinder, the cylinder body end of described folding oil cylinder is hinged on the left main body link outer wall, and piston end is hinged on the right main body link outer wall; The link of described dead bolt is hinged on the folding end of left main body by the dead bolt joint pin that is set with torsion spring, and the buckling end of dead bolt and the buckling end of right main body fasten; The upper and lower end face of described dead bolt outside symmetry is shaped with the mounting hole I, the upper surface of dead bolt is hinged with auxiliary catch, and have the mounting hole II on the auxiliary catch, handle is inner to be hinged between the upper and lower end face of the dead bolt outside by the bearing pin I, and the bearing pin II is inserted into the middle part of mounting hole I, mounting hole II and handle; The dead bolt pull bar is " Y " type, and its inside left-end head is hinged by bearing pin III and the upper and lower end face of the dead bolt outside, and inboard right-hand member gib head is hooked in the middle part of bearing pin II; The cylinder body end of dead bolt oil cylinder is hinged on the left main body folding end outer wall, and piston end is hinged on the outer end of dead bolt pull bar; The buckling end of described right main body is provided with the hooked scarf that can hook together with auxiliary catch.

Further, outwardly on the described left main body link outer wall have a support arm I, and outwardly on the folding end outer wall have a support arm II, and outwardly on the right main body link outer wall have a pusher arm; The cylinder body end of described folding oil cylinder is hinged on the support arm I, and piston end is hinged on the pusher arm; The cylinder body end of described dead bolt oil cylinder is hinged on the support arm II.

Further, outwardly on the outer wall of described left main body middle part have a left hanger, and outwardly on the outer wall of right main body middle part have right hanger, and the center to center distance of left hanger and right hanger is 600-800mm.

Further, balanced structure centered by described left main body and right main body are rear by the dead bolt fastening is opened rear upper plane and is leaned forward less than 35 °.

Further, the buckling end of described dead bolt is provided with approach switch, described right main body buckling end be provided with cooperate with approach switch near the contact, left main body outer wall is provided with signal projector, and the signal output part of approach switch is connected with signal projector.

The advantage that the utility model compared with prior art has and effect:

1, opening with fastening of elevator all adopted hydraulic control, realized automatically opening and fastening of elevator, and be accurate, greatly improved bit speed.And can support the use with any rig, be particularly suitable for supporting the use at top drive drilling.Maximum carrying has reached 750T.

2, the folding of elevator is by wireless monitor, and the monitor signal receiver places in driller's operating room, and signal lamp is rendered as green prompting when elevator fastens, is when opening that redness, operating personnel can observe the prompting of the opening of elevator, buckling state at any time.

3. the padlock insurance institution of elevator adopts the inverted hook type structure, and is safe, solved the phenomenon that old-fashioned elevator does not live because of wearing and tearing Slip Hook, unhook, hook.

4, elevator open rear elevator top rake less than 35 °, after fastening on the elevator plane all can automatically be in level, guarantee that elevator work aperture all the time perpendicular to drilling rod, can not produce the phenomenon in eccentric wear drilling rod and elevator work aperture.

5, elevator two hanger center to center distance are that 600-800mm opens greatly shelves, and are highly beneficial to various rigs, the particularly rotation of top drive drilling swiveling head, and following back-up tong can not hinder 360 ° of revolutions of suspension ring and elevator.

Description of drawings

Structural representation when Fig. 1 is the utility model fastening,

Fig. 2 is the utility model structural representation when opening,

Structural representation when Fig. 3 is the utility model dead bolt fastening,

Structure sectional view when Fig. 4 is the utility model dead bolt fastening.

The specific embodiment

Below in conjunction with accompanying

drawing

1,2,3,4 a kind of embodiment of the present utility model is described.

A kind of hydro-cushion large-tonnage elevator, comprise left main body 1, right main body 2 and dead bolt 3, all be fixed with semicircle slips 11 on the circular arc inwall of described left main body 1 and right main body 2, and the link of left main body 1 and right main body 2 makes two semicircle slips 11 be combined to form circular elevator work aperture 27 by main body joint pin 6 hinged formation opposite opened structures.Described left main body 1 is provided with folding oil cylinder 5 with the link outside of right main body 2; Outwardly on the described left main body 1 link outer wall have a support arm I 22, and outwardly on the folding end outer wall have a support arm II 23, and outwardly on the right main body 2 link outer walls have a pusher arm 24; The cylinder body end of described folding oil cylinder 5 is hinged on the support arm I 22, and piston end is hinged on the pusher arm 24.

The link of described dead bolt 8 is hinged on by the dead bolt joint pin 3 that is set with torsion spring outside the folding end of left main body 1, and the buckling end of the buckling end of dead bolt 8 and right main body 2 fastens; Described dead bolt 8 upper and lower end face outside symmetries are shaped with mounting hole I 18, the upper surface of dead bolt 8 is hinged with auxiliary catch 13, and has mounting hole II 19 on the

auxiliary catch

13,9 the inners of shaking hands are hinged between the upper and lower end faces of dead bolt 8 outside by bearing pin 17, and bearing pin 20 is inserted into mounting hole I 18, mounting hole II 19 and 9 the middle part of shaking hands; Dead bolt pull bar 10 is " Y " type, and its inside left-end head is hinged with the dead bolt 8 upper and lower end face outsides by bearing pin III 14, and inboard right-hand member gib head is hooked in the middle part of bearing pin II 20; The cylinder body end of dead bolt oil cylinder 4 is hinged on the support arm II 23 on the left main body 1 folding end outer wall, and piston end is hinged on the outer end of dead bolt pull bar 10; The buckling end of described right main body 2 is provided with the hooked scarf 21 that can hook together with auxiliary catch 13.

Outwardly on the described left main body 1 middle part outer wall have a left hanger 25, and outwardly on the right main body 2 middle part outer walls have right hanger 26, and the center to center distance of left hanger 25 and right hanger 26 is 800mm.

Balanced structure centered by after said structure makes left main body 1 and right main body 2 fasten by dead bolt 3 is opened rear upper plane and is leaned forward less than 35 °.

The buckling end of described dead bolt 3 is provided with approach switch 15, described right main body 2 buckling ends be provided with cooperate with approach switch 15 near contact 16, left main body 1 outer wall is provided with signal projector 12, and the signal output part of approach switch 15 is connected with signal projector 12.

Elevator fastens: folding oil cylinder 5 piston rods stretch out right main body 2 are fastened around main body joint pin 6, dead bolt oil cylinder 4 piston rods stretch out and dead bolt 8 are rotated under the torsion spring effect around dead bolt joint pin 3 fasten right main body 2, finishing elevator fastens, meanwhile, auxiliary catch 13 hooks hooked scarf 21, contact near contact 16 on approach switch 15 on the dead bolt 8 and the right main body 2, output fastens signal to transmitter 12, signal projector 12 is transmitted to signal wireless the signal receiver of driller chamber, prompting driller elevator fastens intact, can carry out next operation.

Elevator is opened: piston rod on the dead bolt oil cylinder 4 retraction to inner rotary, and then spurs simultaneously by bearing pin II 20 that auxiliary catch 13 rotations break away from hooked scarfs 21 and dead bolt 8 breaks away from right main body 2 to inner rotary by dead bolt pull bar 10 pulling handles 9; Meanwhile, approach switch 15 leaves near contact 16 with dead bolt 8, the output opening signal is to transmitter 12, signal projector 12 is transmitted to signal wireless the signal receiver of driller chamber, prompting driller elevator is opened, afterwards, the piston rod retraction on the folding oil cylinder 5, right main body 2 is finished opening action around main body joint pin 6.Certainly also can elevator be opened by artificial pulling handle 9 outside rotary manuals.

Above-described embodiment is preferred embodiment of the present utility model, is not to limit practical range of the present utility model, so all equivalences of being done with the described content of the utility model claim change, all should be included within the utility model claim scope.

Claims

1. hydro-cushion large-tonnage elevator, comprise left main body (1), right main body (2) and dead bolt (3), all be fixed with semicircle slips (11) on the circular arc inwall of described left main body (1) and right main body (2), and the link of left main body (1) and right main body (2) is by the hinged formation opposite opened of main body joint pin (6) structure, make two semicircle slips (11) be combined to form circular elevator work aperture (27), it is characterized in that: described left main body (1) is provided with folding oil cylinder (5) with the link outside of right main body (2), the cylinder body end of described folding oil cylinder (5) is hinged on left main body (1) the link outer wall, and piston end is hinged on right main body (2) the link outer wall; The link of described dead bolt (8) is hinged on the folding end of left main body (1) by the dead bolt joint pin (3) that is set with torsion spring, and the buckling end of the buckling end of dead bolt (8) and right main body (2) fastens; The upper and lower end face of described dead bolt (8) outside symmetry is shaped with mounting hole I (18), the upper surface of dead bolt (8) is hinged with auxiliary catch (13), and has mounting hole II (19) on the auxiliary catch (13), handle (9) is inner to be hinged between the upper and lower end face of dead bolt (8) outside by bearing pin I (17), and bearing pin II (20) is inserted into the middle part of mounting hole I (18), mounting hole II (19) and handle (9); Dead bolt pull bar (10) is " Y " type, and its inside left-end head is hinged with the upper and lower end face of dead bolt (8) outside by the bearing pin III (14) that is set with torsion spring, and inboard right-hand member gib head is hooked in the middle part of bearing pin II (20); The cylinder body end of dead bolt oil cylinder (4) is hinged on left main body (1) the folding end outer wall, and piston end is hinged on the outer end of dead bolt pull bar (10); The buckling end of described right main body (2) is provided with the hooked scarf (21) that can hook together with auxiliary catch (13).

2. hydro-cushion large-tonnage elevator according to claim 1, it is characterized in that: outwardly on described left main body (1) the link outer wall have a support arm I (22), outwardly on the folding end outer wall have a support arm II (23), and outwardly on right main body (2) the link outer wall have a pusher arm (24); The cylinder body end of described folding oil cylinder (5) is hinged on the support arm I (22), and piston end is hinged on the pusher arm (24); The cylinder body end of described dead bolt oil cylinder (8) is hinged on the support arm II (23).

3. hydro-cushion large-tonnage elevator according to claim 2, it is characterized in that: outwardly on the outer wall of described left main body (1) middle part have a left hanger (25), outwardly on the outer wall of right main body (2) middle part have right hanger (26), and the center to center distance of left hanger (25) and right hanger (26) is 600mm-800mm.

4. hydro-cushion large-tonnage elevator according to claim 3 is characterized in that: balanced structure centered by after described left main body (1) fastens by dead bolt (3) with right main body (2), and open rear upper plane and lean forward less than 35 °.

5. according to claim 1 and 2 or 3 or 4 described hydro-cushion large-tonnage elevators, it is characterized in that: the buckling end of described dead bolt (3) is provided with approach switch (15), described right main body (2) buckling end be provided with cooperate with approach switch (15) near contact (16), left main body (1) outer wall is provided with signal projector (12), and the signal output part of approach switch (15) is connected with signal projector (12).